First time i have saw this, we all know the tune very well, to watch & listen to the band play like this is amazing.A time & place when reggae was proud & the music had a thing called "Jamaican time " The musicians would jam in a loose laid back style , that is very hard to imitate.

They tended to tighten up when touring abroad though.That sound has some groove, full of soulful jazz, yet still sounds totally raw reggae.